(Manuals of pure and applied chemistry)
Manuals of pure and applied chemistry
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1931
Nil Ratan Dhar was born on the 2rd of January, 1892 in Jessore (Bangladesh). His father, Prasanna Kumar Dhar, was a lawyer and his grandfather, Prem Chand Dhar, was a landlord of the place. His mother, Nirode Mohini Dhar, was the daughter of Kunja Bihari Ghosh.
Nil Ratan, at the age of five in 1897, was admitted to Government Zila School. He always stood first in his class and passed the entrance examination held by the Calcutta University in 1907, at the age of 15, in first division with distinction and obtained a Merit Divisional Scholarship of Rs 1.21- per month tenable for two years.
In 1907 Nil Ratan left Jessore and joined the famous Rippon College. He became highly interested in both physics and chemistry and organised a small laboratory for practical work.
In July, 1909 he joined the Presidency College, Calcutta. In July 1911, Nil Ratan joined MSc course in chemistry in Presidency College, Calcutta with research work in physical chemistry.
In June 1917, Dhar was awarded the DSc degree of the London University, after that he studied in the Sorbonne, Science Faculty (Paris) and obtained the State Doctorate of Science.
Fellow: National Institute of Sciences of India, National Academy of Sciences, Royal Institute of Chemistry (London), Institute of Chemists (India).
Nil Ratan Dhar was a visiting lecturer in many European Colleges and Universities, he was invited to deliver lectures at the Universities of London,Cambridge, Edinburg and Aberdeen in UK; Sorbonne, Toulouse and Biarritz in France; Opatia in Yugoslavia; Bucharest in Roumania; Madrid in Spain and Wisconsin in USA, Physico-chemical and Electrochemical Institute at Berlin-Dahlem, etc.
He carried out many researches and worked in different european laboratories. Dhar went to Europe in 1931 and 1951 to deliver lectures on his researches. In 1953, 1954, he went with his wife and spent 10 months in the Uppsala Agricultural University, Sweden to demonstrate his method of photochemical nitrogen fixation. Also Dhar suggested a simple method of improving alkali soils by the application of molasses, press-mud and other organic materials to such soil. But his main post was a Professor of Physics and Inorganic Chemistry at Allahabad Univerity.
In 1927, after constructing his residential building on Beli Road Allahabad, Professor Dhar also constructed another huge building on the same land in the pattern of a Research Institute. After the demise of his wife Mrs Sheila Dhar in January, 1949, Professor Dhar renamed the Institute as Sheila Dhar Institute of Soil Sciences and became it`s Honorary Life Director.
(Manuals of pure and applied chemistry)
1931(Kamala lectures)
1972
Nil Ratan Dhar married Miss Sheila Roy in 1930 who was a distinguished physical chemist. She died of cancer in 1949. After her death, he married Miss Mira Chatterjee in 1950.
